These are not really the same size class, and that is the honest framing here. The JBL Partybox Encore Essential 2 ranks #6 of 113 boombox speakers by sound quality at $249.95; the JBL Xtreme 4 ranks #43 of 120 large speakers by sound quality at $309.95.
The JBL Partybox Encore Essential 2 is the louder choice. A compact party speaker with balanced sound, punchy bass, mic and guitar inputs, and enough volume for a backyard party. Alan Ross Reviews measured it at 110dB at full volume, against 106dB for the JBL Xtreme 4. It keeps a wired aux input, which the JBL Xtreme 4 lacks. The catch: It is front-facing, so the sound changes noticeably to the sides and behind it, and bass compression reduces kick-drum impact at maximum volume.
The JBL Xtreme 4 is the longer-running, lighter option. A rugged, waterproof speaker with clear, punchy sound, a swappable battery, a power bank and excellent real world battery life. It is rated for 24 hours of battery against 15 for the JBL Partybox Encore Essential 2. At 4.6 lbs (2.1 kg) it weighs much less than the JBL Partybox Encore Essential 2 at 13.7 lbs (6.2 kg). It is rated IP67 against IPX4 for the JBL Partybox Encore Essential 2. Watch for: It cannot produce the deep rumble of a larger speaker, and bass compression increases near maximum volume.
Buy the JBL Partybox Encore Essential 2 at $249.95 for a boombox speaker, or the JBL Xtreme 4 at $309.95 for a large speaker instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Prices on this page were last checked November 11, 2026 at 3:26 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| JBL Partybox Encore Essential 2 | JBL Xtreme 4 | |
|---|---|---|
| Price | $249.95 | $309.95 |
| Ranked | #6 of 113 in Boombox Size Portable Bluetooth Speakers | #43 of 120 in Large Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | Yes |
| Aux Input | Yes | No |
| Battery Life | 15 hours (Manufacturer specified) | 24 hours (Manufacturer specified) |
| Built-in Microphone | No | Yes |
| EQ | Yes (7 band App EQ) | Yes (5 band) |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | IP67 |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-C) | Yes (USB-C) |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | - |
| Weight | 13.7 lbs (6.2 kg) | 4.6 lbs (2.1 kg) |
| Wireless Microphones | No | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.3 |
| Amplifier Power | 100W RMS | 100W |
| Dimensions | 12.6” x 13.5” x 10.3” (319.5 x 342 x 260.4 mm) | 11.7” x 5.9” x 5.6” (297 x 149 x 141 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 2x 70mm woofers, 2x 19mm tweeters + 2x passive radiators |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 106dB (measured by Alan Ross Reviews) |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | Yes (detachable shoulder strap) |
| Bass Extension (-10dB) | 42Hz | - |
| Bluetooth Latency | - | 220ms |
| Removable Battery | - | Yes |
| Frequency Response | - | 44Hz - 20kHz (Manufacturer specified) |
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